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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.Versioning;
using System.Security;
using System.Security.Cryptography;
using System.Text;
using Microsoft.Build.Framework;
using Microsoft.Build.Shared;
using Microsoft.Build.Shared.FileSystem;
using Microsoft.Win32;
#nullable disable
namespace Microsoft.Build.Tasks.Deployment.ManifestUtilities
{
internal static class Util
{
internal static readonly string Schema = Environment.GetEnvironmentVariable("VSPSCHEMA");
internal static readonly bool logging = !String.IsNullOrEmpty(Environment.GetEnvironmentVariable("VSPLOG"));
internal static readonly string logPath = GetLogPath();
private static readonly char[] s_fileNameInvalidChars = { '\\', '/', ':', '*', '?', '"', '<', '>', '|' };
private static StreamWriter s_logFileWriter;
#if !RUNTIME_TYPE_NETCORE
// Major, Minor, Build and Revision of CLR v2.0
private static readonly int[] s_clrVersion2 = { 2, 0, 50727, 0 };
#else
// Major, Minor, Build and Revision of CLR v4.0
private static readonly int[] s_clrVersion4 = { 4, 0, 30319, 0 };
#endif
#region " Platform <-> ProcessorArchitecture mapping "
// Note: These two arrays are parallel and must correspond to one another.
private static readonly string[] s_platforms =
{
"AnyCPU",
"x86",
"x64",
"Itanium",
"arm",
"arm64",
};
private static readonly string[] s_processorArchitectures =
{
"msil",
"x86",
"amd64",
"ia64",
"arm",
"arm64",
};
#endregion
public static string ByteArrayToHex(Byte[] a)
{
if (a == null)
{
return null;
}
StringBuilder s = new StringBuilder(a.Length);
foreach (Byte b in a)
{
s.Append(b.ToString("X02", CultureInfo.InvariantCulture));
}
return s.ToString();
}
public static string ByteArrayToString(Byte[] a)
{
if (a == null)
{
return null;
}
StringBuilder s = new StringBuilder(a.Length);
foreach (Byte b in a)
{
s.Append(Convert.ToChar(b));
}
return s.ToString();
}
public static int CopyStream(Stream input, Stream output)
{
const int bufferSize = 0x4000;
byte[] buffer = new byte[bufferSize];
int bytesCopied = 0;
int bytesRead;
do
{
bytesRead = input.Read(buffer, 0, bufferSize);
output.Write(buffer, 0, bytesRead);
bytesCopied += bytesRead;
} while (bytesRead > 0);
output.Flush();
input.Position = 0;
output.Position = 0;
return bytesCopied;
}
public static string FilterNonprintableChars(string value)
{
StringBuilder sb = new StringBuilder(value);
int i = 0;
while (i < sb.Length)
{
if (sb[i] < ' ')
{
sb.Remove(i, 1);
}
else
{
++i;
}
}
return sb.ToString();
}
public static string GetAssemblyPath()
{
return Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
}
public static string GetClrVersion()
{
Version v = Environment.Version;
#if RUNTIME_TYPE_NETCORE
// This is a version of ClickOnce .NET FX target runtime, which cannot be obtained in .NET (Core) process.
// Set to .NET FX v4 runtime as the ony one supported for manifest generation in .NET (Core) process.
v = new Version(s_clrVersion4[0], s_clrVersion4[1], s_clrVersion4[2], s_clrVersion4[3]);
#else
v = new Version(v.Major, v.Minor, v.Build, 0);
#endif
return v.ToString();
}
/// <summary>
/// Return a CLRVersion from a given target framework version.
/// </summary>
/// <param name="targetFrameworkVersion"></param>
/// <returns></returns>
public static string GetClrVersion(string targetFrameworkVersion)
{
if (string.IsNullOrEmpty(targetFrameworkVersion))
{
return GetClrVersion();
}
Version clrVersion;
#if RUNTIME_TYPE_NETCORE
// This is a version of ClickOnce .NET FX target runtime, which cannot be obtained in .NET (Core) process.
// Set to .NET FX v4 runtime as the ony one supported for manifest generation in .NET (Core) process.
Version currentVersion = new Version(s_clrVersion4[0], s_clrVersion4[1], s_clrVersion4[2], s_clrVersion4[3]);
#else
Version currentVersion = Environment.Version;
#endif
Version frameworkVersion = GetTargetFrameworkVersion(targetFrameworkVersion);
// for FX 4.0 or above use the current version.
if (frameworkVersion != null && (frameworkVersion.Major >= currentVersion.Major))
{
clrVersion = new Version(currentVersion.Major, currentVersion.Minor, currentVersion.Build, 0);
}
else
{
#if RUNTIME_TYPE_NETCORE
// Set to .NET FX v4 runtime as the ony one supported for manifest generation in .NET (Core) process.
clrVersion = new Version(s_clrVersion4[0], s_clrVersion4[1], s_clrVersion4[2], s_clrVersion4[3]);
#else
clrVersion = new Version(s_clrVersion2[0], s_clrVersion2[1], s_clrVersion2[2], s_clrVersion2[3]);
#endif
}
return clrVersion.ToString();
}
/// <summary>
/// Gets a Version object corresponding to the given target framework version string.
/// </summary>
public static Version GetTargetFrameworkVersion(string targetFramework)
{
Version frameworkVersion = null;
if (!String.IsNullOrEmpty(targetFramework))
{
if (targetFramework.StartsWith("v", StringComparison.OrdinalIgnoreCase))
{
Version.TryParse(targetFramework.Substring(1), out frameworkVersion);
}
else
{
Version.TryParse(targetFramework, out frameworkVersion);
}
}
return frameworkVersion;
}
public static string GetEmbeddedResourceString(string name)
{
Stream s = GetEmbeddedResourceStream(name);
using StreamReader r = new StreamReader(s);
return r.ReadToEnd();
}
public static Stream GetEmbeddedResourceStream(string name)
{
Assembly a = Assembly.GetExecutingAssembly();
Stream s = a.GetManifestResourceStream(String.Format(CultureInfo.InvariantCulture, "{0}.{1}", typeof(Util).Namespace, name));
Debug.Assert(s != null, String.Format(CultureInfo.CurrentCulture, "EmbeddedResource '{0}' not found", name));
return s;
}
public static void GetFileInfo(string path, out string hash, out long length)
{
GetFileInfoImpl(path, null, out hash, out length);
}
public static void GetFileInfo(string path, string targetFrameworkVersion, out string hash, out long length)
{
GetFileInfoImpl(path, targetFrameworkVersion, out hash, out length);
}
[SuppressMessage("Security", "CA5350:Do Not Use Weak Cryptographic Algorithms", Justification = ".NET 4.0 and earlier versions cannot parse SHA-2.")]
private static void GetFileInfoImpl(string path, string targetFrameWorkVersion, out string hash, out long length)
{
FileInfo fi = new FileInfo(path);
length = fi.Length;
Stream s = null;
HashAlgorithm hashAlg = null;
try
{
s = fi.OpenRead();
if (string.IsNullOrEmpty(targetFrameWorkVersion) || CompareFrameworkVersions(targetFrameWorkVersion, Constants.TargetFrameworkVersion40) <= 0)
{
#pragma warning disable SA1111, SA1009 // Closing parenthesis should be on line of last parameter
hashAlg = SHA1.Create(
#if FEATURE_CRYPTOGRAPHIC_FACTORY_ALGORITHM_NAMES
"System.Security.Cryptography.SHA1CryptoServiceProvider"
#endif
);
#pragma warning restore SA1111, SA1009 // Closing parenthesis should be on line of last parameter
}
else
{
#pragma warning disable SA1111, SA1009 // Closing parenthesis should be on line of last parameter
hashAlg = SHA256.Create(
#if FEATURE_CRYPTOGRAPHIC_FACTORY_ALGORITHM_NAMES
"System.Security.Cryptography.SHA256CryptoServiceProvider"
#endif
);
#pragma warning restore SA1111, SA1009 // Closing parenthesis should be on line of last parameter
}
byte[] hashBytes = hashAlg.ComputeHash(s);
hash = Convert.ToBase64String(hashBytes);
}
finally
{
s?.Close();
hashAlg?.Dispose();
}
}
private static string GetLogPath()
{
if (!logging)
{
return null;
}
string logPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), @"Microsoft\VisualStudio\8.0\VSPLOG");
if (!FileSystems.Default.DirectoryExists(logPath))
{
Directory.CreateDirectory(logPath);
}
return logPath;
}
[SupportedOSPlatform("windows")]
public static string GetRegisteredOrganization()
{
RegistryKey key = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", false);
if (key != null)
{
string org = (string)key.GetValue("RegisteredOrganization");
org = org?.Trim();
if (!String.IsNullOrEmpty(org))
{
return org;
}
}
return null;
}
public static bool IsValidAssemblyName(string value)
{
return IsValidFileName(value);
}
public static bool IsValidCulture(string value)
{
if (String.Equals(value, "neutral", StringComparison.OrdinalIgnoreCase))
{
return true; // "neutral" is valid in a manifest but not in CultureInfo class
}
if (String.Equals(value, "*", StringComparison.OrdinalIgnoreCase))
{
return true; // "*" is same as "neutral"
}
CultureInfo culture;
try
{
culture = new CultureInfo(value);
}
catch (ArgumentException)
{
return false;
}
return true;
}
public static bool IsValidFileName(string value)
{
return value.IndexOfAny(s_fileNameInvalidChars) < 0;
}
public static bool IsValidVersion(string value, int octets)
{
Version version;
try
{
version = new Version(value);
}
catch (FormatException)
{
return false;
}
catch (ArgumentOutOfRangeException)
{
return false;
}
catch (ArgumentNullException)
{
return false;
}
catch (ArgumentException)
{
return false;
}
catch (OverflowException)
{
return false;
}
if (octets >= 1 && version.Major < 0)
{
return false;
}
if (octets >= 2 && version.Minor < 0)
{
return false;
}
if (octets >= 3 && version.Build < 0)
{
return false;
}
if (octets >= 4 && version.Revision < 0)
{
return false;
}
return true;
}
internal static bool IsValidFrameworkVersion(string value)
{
if (value.StartsWith("v", StringComparison.OrdinalIgnoreCase))
{
return IsValidVersion(value.Substring(1), 2);
}
return IsValidVersion(value, 2);
}
public static string PlatformToProcessorArchitecture(string platform)
{
for (int i = 0; i < s_platforms.Length; ++i)
{
if (String.Equals(platform, s_platforms[i], StringComparison.OrdinalIgnoreCase))
{
return s_processorArchitectures[i];
}
}
return null;
}
private static ITaskItem[] RemoveDuplicateItems(ITaskItem[] items)
{
if (items == null)
{
return null;
}
if (items.Length <= 1)
{
return items;
}
var list = new Dictionary<string, ITaskItem>();
foreach (ITaskItem item in items)
{
if (String.IsNullOrEmpty(item.ItemSpec))
{
continue;
}
string key;
var id = new AssemblyIdentity(item.ItemSpec);
if (id.IsStrongName)
{
key = id.GetFullName(AssemblyIdentity.FullNameFlags.All);
}
else
{
key = Path.GetFullPath(item.ItemSpec).ToUpperInvariant();
}
if (!list.ContainsKey(key))
{
list.Add(key, item);
}
}
return list.Values.ToArray();
}
public static ITaskItem[] SortItems(ITaskItem[] items)
{
ITaskItem[] outputItems = RemoveDuplicateItems(items);
if (outputItems != null)
{
Array.Sort(outputItems, s_itemComparer);
}
return outputItems;
}
public static void WriteFile(string path, string s)
{
using (StreamWriter w = new StreamWriter(path))
{
w.Write(s);
}
}
public static void WriteFile(string path, Stream s)
{
using StreamReader r = new StreamReader(s);
WriteFile(path, r.ReadToEnd());
}
public static void WriteLog(string text)
{
if (!logging)
{
return;
}
if (s_logFileWriter == null)
{
try
{
s_logFileWriter = new StreamWriter(Path.Combine(logPath, "Microsoft.Build.Tasks.log"), false);
}
catch (UnauthorizedAccessException)
{
return;
}
catch (ArgumentException)
{
return;
}
catch (IOException)
{
return;
}
catch (SecurityException)
{
return;
}
}
s_logFileWriter.WriteLine(text);
s_logFileWriter.Flush();
}
public static void WriteLogFile(string filename, Stream s)
{
if (!logging)
{
return;
}
string path = Path.Combine(logPath, filename);
using var r = new StreamReader(s, Encoding.UTF8, detectEncodingFromByteOrderMarks: true, 1024, leaveOpen: true);
string text = r.ReadToEnd();
try
{
WriteFile(path, text);
}
catch (UnauthorizedAccessException)
{
}
catch (ArgumentException)
{
}
catch (IOException)
{
}
catch (SecurityException)
{
}
s.Position = 0;
}
public static void WriteLogFile(string filename, string s)
{
if (!logging)
{
return;
}
string path = Path.Combine(logPath, filename);
try
{
WriteFile(path, s);
}
catch (UnauthorizedAccessException)
{
return;
}
catch (ArgumentException)
{
return;
}
catch (IOException)
{
return;
}
catch (SecurityException)
{
return;
}
}
public static void WriteLogFile(string filename, System.Xml.XmlElement element)
{
if (!logging)
{
return;
}
WriteLogFile(filename, element.OuterXml);
}
public static string WriteTempFile(Stream s)
{
// May throw IO-related exceptions
string path = FileUtilities.GetTemporaryFileName();
WriteFile(path, s);
return path;
}
public static string WriteTempFile(string s)
{
// May throw IO-related exceptions
string path = FileUtilities.GetTemporaryFileName();
WriteFile(path, s);
return path;
}
#region ItemComparer
private static readonly ItemComparer s_itemComparer = new ItemComparer();
private class ItemComparer : IComparer
{
int IComparer.Compare(object obj1, object obj2)
{
if (obj1 == null || obj2 == null)
{
Debug.Fail("Comparing null objects");
return 0;
}
if (!(obj1 is ITaskItem) || !(obj2 is ITaskItem))
{
Debug.Fail("Comparing objects that are not ITaskItem");
return 0;
}
ITaskItem item1 = obj1 as ITaskItem;
ITaskItem item2 = obj2 as ITaskItem;
if (item1.ItemSpec == null || item2.ItemSpec == null)
{
Debug.Fail("Objects do not have a ItemSpec");
return 0;
}
return String.Compare(item1.ItemSpec, item2.ItemSpec, StringComparison.Ordinal);
}
}
#endregion
public static Version ConvertFrameworkVersionToString(string version)
{
if (version.StartsWith("v", StringComparison.OrdinalIgnoreCase))
{
return new Version(version.Substring(1));
}
return new Version(version);
}
public static int CompareFrameworkVersions(string versionA, string versionB)
{
Version version1 = ConvertFrameworkVersionToString(versionA);
Version version2 = ConvertFrameworkVersionToString(versionB);
return version1.CompareTo(version2);
}
}
}
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